Smart USB plug detection
US10108243B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2013 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Sep 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Smart USB plug detection is disclosed. In some embodiments, a battery charger identification chip includes circuitry configured to determine whether an external USB device has been plugged into a USB port of an associated system while the system is in a sleep mode and includes a pin configured to output a control signal indicating whether an external USB device is plugged into the system, wherein when an external USB device is plugged into the system the control signal facilitates powering on a current limit switch that is otherwise powered off during the sleep mode and wherein the current limit switch facilitates regulated delivery of current to the plugged in external USB device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.